• Polyester
• Winter :it is convenient to carry along for any outdoor adventures, and its ability to withstand weather conditions,hiking
• Backpacking sleeping bags:it is windproof and keep you warm, a nice outdoor camping helper,lightweight
• Hiking sleeping bags:the light-weight and sturdy structure of this camping makes your hiking trip ,adults
• Warm :you can easily roll up the sleep bag into the attached carrier, and convenient to carry, for adults
• Travel accessories:can be rolled and stuffed into the sturdy carrying bag, convenient to store and carry, for adult